Datasheet

Family Group
References
ISO Statement
Technical Information
3M™ Dual Lock™ Reclosable Fastener SJ3550
Design Considerations
• As a general rule, four square inches of fastener area per pound of static tensile or shear load to be supported is suggested as a starting point for evaluation. More or
less area may be needed depending on specic conditions or end use applications. Type 250 Dual Lock Reclosable fasteners less than 0.75" (19 mm) width should not
be engaged to other type 250 Dual Lock Reclosable fastener as low disengagement values may occur.
• Whenever possible design one side of the Dual Lock reclosable fasteners to be larger than the mating side. This will allow for variability or mismatch in Dual lock
alignment positions, and ensure 100% fastening area contact. Another approach would be to design two rectangular shaped fastener pieces so that they can be
engaged in a cross web/perpendicular pattern (crossed).
• Dual Lock strength is proportional to the fastening contact area, and the number of stems in combination used. More stems and more Dual Lock used gives you more
strength, less stems combined and using less Dual Lock will give you less strength.
• Dual Lock disengagement strength/performance is strongest in direct tensile. Peel/cleavage mode is where it is most easily removed.
• Final product performance depends upon a combination of factors: the substrate and its surface characteristics, the fastener selected, the application method and
conditions, the time and environmental conditions required for the application. Because these factors are unique to each application, the user must evaluate Dual Lock
and do any testing required to determine Dual Lock’s suitability for the user’s desired end use.
Storage and Shelf Life
To obtain best performance, use this product within 24 months from date of manufacture.
SJ3550 SJ3551 SJ3552
Thickness (mm) 3.51 3.51 3.51
Liner Material Silicone treated Polyolen
with Red printing
Silicone treated Polyolen
with Red printing
Silicone treated Polyolen
with Red printing
Liner Thickness (mm) 0.1 0.1 0.1
Liner Color Clear Clear Clear
1. 3m.com Product Page
Url: https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Dual-Lock-Reclosable-Fastener-SJ3550?N=5002385+3293242274&rt=rud
2. Safety Data Sheet
Url: https://www.3m.com/3M/en_US/company-us/SDS-search/results/?gsaAction=msdsSRA&msdsLocale=en_US&co=ptn&q=SJ3550
This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001 standards.
The technical information, recommendations and other statements contained in this document are based upon tests or experience that 3M believes are reliable, but the
accuracy or completeness of such information is not guaranteed.